| 摘要 |
PROBLEM TO BE SOLVED: To make smooth an initial rising of a spring characteristic of a spring seat rubber. SOLUTION: An annular concave groove 3 is formed on the top face side of a ring shaped rubber main body 2, and a small protrusion 4 is installed in a protruding manner from the bottom thereof. The small protrusion 4 is made abut on a spring bracket 6 before non-linear spring characteristics starts rising with the collapse of the concave groove 3, and then the initial rising thereof becomes smooth because the tangential spring constant becomes large by degrees. |
